Sectional smut sheet and crossbar for smut-sheet machines



I. E. GILBERT AND G. W. HARRIS. sEcTloNAL sMu'r sHEET AND cRoss BAR Eon sMuT SHEET MACHINES.

APPLICATION FILED MAY I7, 1920.

Patented o@t.31,1922

Patented Oct. 3l, 1922.

UNITED STATES einen j JAMS E. GILBERT AND GLENN W. HARRIS, OF CHICAGO, ILLINOIS.

SECTIONAL SMUT SHEET AND CROSSBAR FOIt SMUT-SHEET MACHINES.

Application filed May 17,

To all lwhom t 'may concern.' i

Beit known that we, James ll. GILBERT and GLENN lV. Hamas, citizens ofthe United States, residing,r at Chicago, countyof Cook, and State of Illinois, have invented a cer tain new and useful Improvement in Sectional Smut Sheets and Crossbars for Smut- SheetMachines, of whichthe following is a speciiication.

Patent Nrunber 966,759 to I. lil. Gilbert, issued August 9, 1910, illustrates and claims a machine for taking cure of sheets of printed or lithographed mattei' between the time they receive the impression of ink and the time they are suiiiciently dried to prevent off setting when placed on a pile. Broadly speak-4 ing that machine includes the use of an in termittently moving and successively folding?)` strip of cloth between which successive sheets of printed paperaregplaced immediately on being printed, and in `which they are carried until suiiciently dry to be automatically delivered from the machine, all as will more fully appear from the inspection'of` said patent.

In that machine a section of a .continuous strip of cloth is teiuporarilv stretched between'supports'duringjwhic time it is referred `to as a print sheet support. Vhile this section of cloth is being fed intoV posi-` tionfin the support the paper to be taken care of travels along and is carried by it to the position Where it is to be smutted by the succeeding section lofecloth` i The next section of cloth, spread'over the paperon the l print sheet support is denominatedda smut sheet. t i.

y-In the machine ofisaid prior patent, the print sheet*supporti` andthe smut sheet are in fact one continuous piece of cloth and carry at their juncture a metallic cross bar designated 52, in said patent, pivoted to the continuous cloth on a single hinge. This construction is for the urposes of allowing the bar to be temporarily supported in and passed down vertical guides 44 or 45 as the c ase maybe, of said `patent while the smutting operation is taking place with the. print sheet support and the smutsheet parallel to and adjacent to each other and at right angles to said support as is clearly shown and `set forthvin said prior patent. When the svlnuttingA operatious not takingplace in thepmhine of, said Aprior patent, the` two 1920. serial No. 382,142..

bar from the bottom of the machine to the top of the machine, is fully set forth in said prior patent.

The use of the continuous strip ofcloth as set forth in saidprior patent in a mal chine of the type in question has several dis advantages-(54) 'if a section of the cloth l`gives out .in operation either from wear or from injury fromthe outside, the only way it can be replaced .is to stop the machine, cut out the injured section and sew in a new section. Owing to the breadth ofthe cloth strip used in commercial practice varying' from 64 to 72 inches, and the fact that the cloth carries metallic cross-bars at frequent intervals,it is impossible to apply a sewing' machine in this operation, and it therefore hasto be done by handvat an expense of approximately two hours time in actual prac-I tice which means the tying up of the entire printing unit with which the machine is cooperating. (b) Different sections of cloth, obviously get ydirty faster thanl others, and .in 'the prior machine itis impossible'to clean a section'without making the entire strip of cloth olf the machine and cleaning` it as a whole and in the same `way it is impossible to reverse the cloth'if one side-'becomes dirty in the sm'utting operation, as is apt to be the case, to use the other side before cleaning the whole cloth. i t .y v

The object of this invention is to` provide what is for practical purposes `in the'ruinl ning of the machine, a continuous strip oi smut sheet cloth with bars attached `thereto and to so construct it that the sections of cloth between successive barsare separate units and may therefore be readily removed for repair, cleaning or replacement. A further object of the invention is to provide a satisfactory and eiicient har construction which.` facilitates thev ready attachment and detachmentof the adjacent sections of cloth. The invention consists in means for carry ing out the foregoing objects which can vbe easilyand cheaply made,`wh1ch 1s satlsfae tory .in o eration and not'readily `liable to getout o4 order, More particularly the n- I struetedv in accord'aine' with this iuvei'ition in its preferred YForm, showing in broken away lforin the adjacent portions (it-smut' sheet cloth attached thereto.

Figure-@is anr rnlarge'tfli detail 'Viewy of the end portions ol?l` irc 1, showing"particu-- larsl)Y the details oli the constrinftfion oit the eliil ot the liar and the pi'i'otal attachment to theeloth".

Figure P is'au end View olf a bar and ad- 'ji Y i io1"t;io`nsol cloth inthe positioirwhieh itassiunes for traveling from the bottoin otI the ,machine to the top; f

Figure isf a sectional: detail' AView on the irregular lined-11- Vof Figure'Q showing|-` attachnien't olfadj aceut sections of cloth to' the har, the parts-"being in the position which they assunie when the sniuttingg operation is taking place, with=` the bar in tlie"vei'tieal t, ides'of the vrniaehinel Figurel is a` sectionalend `View on the line 5``5 of' Figure" 2';

Figurelf isa section-al: end View on the line (3-6 of Figure'".

A The preferred"forni of' barfsho-wn in the drawii'ig is'ina'de of hollow construction"for the purpose of obtaining light-ness and rigidity. Inthel particu-lar torni shownin theflrawing it is made of U-sl`1a`p`ed cross section with tno relatively` wide, parallel sides 10 and a bottoni 12, the interior of the section. being` open/at the top tonarifl'the adjacent portions'oit vcloth 14 and 16 which are, as Clearly sho'wrin the drawings, independently hinged to' the bai" on` paralleh Wires 18 and Q0, detachably insertable onhinge brackets projectingv from. the edge 24 et thebar. These brackets Qserve aA double function; particules of them as described, eX# tend frein. the edgeot the bar and a'ord supports or loca for the'rods'18 and 20, while the reni v y A(ntioi'isv otthem (lr-,siaH entr-fl in Figure 4. entend between the e e 24V o'l bararid` iis-separators for the' eideplates of the bar. These seriarator's arejd uredin pla'eebytubular rin-ets 25 which pass throughthe'side plates 10 and rators; n

extrine ends of the har arev strength e'he'd anfrlireinfoi'ced h i/.iniiakiiig the' end see:- i' 'he bar a rectangular tubev throi'lgh insertion' otiiiller plates QSvsee'ured inplace other tubular rivets 30 like rivets 26'. This strengthening of the ends" ofv the bar is necessary in order' to enable ,them to-withstaiit'l the .action of parte ot' the complet-e totore referred to. These filler blocks 2S serve the further :function oit renderingA the edge i211 or the har smooth at the points where it engages and slips upon thel guides et the machine in passing down them.

Itiselear vtrom the foregoing; description and Vthe drawings that either one ot the cloth sections 1.41' or16n1a)v be disconnected from the particular' bar shown in the drawing` by removing its-hingeV rod 1S or Z0 as the east` may be, and a ne section o'lfjcloth be substituted therefor, itbeing oit course underw stood that such new section'o't cloth has been previouslyv prepared with a' loop R through which the hinge Arod can pass. In the particular case here illustrated these edge loops-:tor the hi nge rodsare .anule 'lijf simply bending an edge 3Q oil? cloth liiaelxn Ward on the cloth proper and sewingl itwitli a machine parallel to the rod, as 'tor instance inthe` seam 311. l

A complete smut sheet belt, referred to. is madeA up by' using successive sections el' cloth' 1.4; and 16 haring on theirv opposite ends loops 31 tor the hinge Wires described and connecting' adjacent' sections of cloth together by hinge structures suehas sho-'wn in 'the drawing. Such a belt# can in the manner described, have aseetion ot" cloth re placedy by simply detaching the opposite edges t o-ity that particular section from the adjacent bars and'substitutinga new 'section of cloth.V In actual practice in a Commercial lnmehinethis can be done in approximately ten minut-es, or less.

Having thus described our invention what weI clann as new' and desire to secure by Letters e Patent, isl r4- 1. In mechan'isinof theclassdeseribed, a smut sheet cloth' including two sections of cloth placedend to end, a transverse bar ot greater length'th'an the Width oit the snuit sheet, and means detachably hinging each section et the cloth to the bar;

2f In mechanism of the'class described,a smut-sheet cloth including two sectionsoi" cloth placedend to end, a transverse bar ot greater length than the Width of the smut; sheet, andfmea'ns independently de'tachabl)7 hinging'ea'ch section' of the cloth to the bar.

In mecha oft-he class described, a' smut sheet cloth includingV twoseetions' of cloth placed end to end,va. transverse bar'o greater length than the Width' of' the smut sheet, andparallel hinge means indepeifi'dfn entlv detaehably hinging each seetion of: the cloth to' the bar.

4; In`A a device oil. the (flats described, a

means for detachably hingiug the cloth sections to the bar through said loops on attaching.

5. In mechanism of the class described, a pair'of aligned cloth' sections, a bar extending across the cloth at the pointof juncture ol said sections, a pair of parallel hinges on the har, one detachably connecting one hinge to cach cloth section, for the purposes set forth. p

6. In mechanism of the class described, a pair of abutting cloth sections, both provided on their adjacent edges with loops.

through which hinged pivot hingescan pass, a bar across the cloth sections adjacent to said loops, a hinged support including a hinged pivot bar or rod rising from the main bar, one for each of said cloth sections, ior the purposes set forth. v

T. In. mechanism of the class described, a cross bar made oi metal of Ushaped cross section, the open edge of the bar being closed at its ends by filler blocks 28 vWhile the central portion ot' the bar carries in its open edge spacing .members 22 'from 'which 'project Wings, this in combination with hinged pivotiods to said Wings, for the pur` poses set forth.

S. In mechanism of the class described, a cross bar of U-shaped metal, apair of separated spacing members 22a inserted Within the open edge of the bar and secured to the bar by rivets a projectingplat'e 2O carried by each member 22 extending :from the edge of the bar at right angles thereto, a pair of hinge rods 18 and 2() connecting said plates 22, and sections of smut sheet cloth pivotalllyT connected on said hinge rods and extending to opposite sides of the bar, for the purposes set forth.

In Witness whereof We have hereunto su scribed our names.

JAMES E. GILBERT. GLENN W. HARRIs.

Wvtnesses: i

A. HAPTUIMR, J oHN' H. Aminos. 

